LT1021
PRODUCTIONPrecision Reference
- Part Models
- 30
- 1ku List Price
- Starting From $2.34
Part Details
- Ultralow Drift: 5ppm/°C Max Slope
- Very Low Noise: P-P (0.1Hz to 10Hz)
- 100% Noise Tested
- Pin Compatible with Most Bandgap Reference Applications, Including REF01, REF02, LM368, MC1400 and MC1404 with Greatly Improved Stability, Noise and Drift
- Trimmed Output Voltage
- Operates in Series or Shunt Mode
- Output Sinks and Sources in Series Mode
- >100dB Ripple Rejection
- Minimum Input/Output Differential of 1V
- Available in 5-Lead Can, N8 and S8 Packages
The LT1021 is a precision reference with ultralow drift and noise, extremely good long term stability and almost total immunity to input voltage variations. The reference output will both source and sink up to 10mA. Three voltages are available: 5V, 7V and 10V. The 7V and 10V units can be used as shunt regulators (two-terminal zeners) with the same precision characteristics as the three terminal connection. Special care has been taken to minimize thermal regulation effects and temperature induced hysteresis.
The LT1021 references are based on a buried zener diode structure that eliminates noise and stability problems associated with surface breakdown devices. Further, a subsurface zener exhibits better temperature drift and time stability than even the best bandgap references.
Unique circuit design makes the LT1021 the first IC reference to offer ultralow drift without the use of high power on-chip heaters.
The LT1021-7 uses no resistive divider to set output voltage, and therefore exhibits the best long term stability and temperature hysteresis. The LT1021-5 and LT1021- 10 are intended for systems requiring a precise 5V or 10V reference with an initial tolerance as low as ±0.05%.
Applications
- A/D and D/A Converters
- Precision Regulators
- Digital Voltmeters
- Inertial Navigation Systems
- Precision Scales
- Portable Reference Standard
Documentation
Data Sheet 1
Reliability Data 1
Application Note 13
Design Note 4
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 30, 2022 - 22_0196 Test Site Transfer of RH, SMD, Class-S, Special Flow, MIL-STD-883 Products from Analog Devices Milpitas to ADGT |
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| 5962-8860001GA | PRODUCTION | |
| 5962-8876201GA | PRODUCTION | |
| 5962-8876202GA | PRODUCTION | |
|
Mar 4, 2022 - 22_0025 Implement Laser Top Mark for TO Metal Can Packages Assembled in Team Pacific Corporation. |
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| 5962-8860001GA | PRODUCTION | |
| 5962-8876201GA | PRODUCTION | |
| 5962-8876202GA | PRODUCTION | |
| LT1021BCH-5 | ||
| LT1021BMH-10 | ||
| LT1021BMH-5 | ||
| LT1021CCH-5 | ||
| LT1021CMH-5 | ||
|
Oct 8, 2024 - 24_0234 Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package |
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| LT1021BCN8-10#PBF | PRODUCTION | |
| LT1021BCN8-5#PBF | PRODUCTION | |
| LT1021BCN8-7#PBF | PRODUCTION | |
| LT1021CCN8-10#PBF | PRODUCTION | |
| LT1021CCN8-5#PBF | PRODUCTION | |
| LT1021CIN8-10#PBF | PRODUCTION | |
| LT1021CIN8-5#PBF | PRODUCTION | |
| LT1021DCN8-10#PBF | PRODUCTION | |
| LT1021DCN8-5#PBF | PRODUCTION | |
| LT1021DCN8-7#PBF | PRODUCTION | |
| LT1021DIN8-10#PBF | PRODUCTION | |
| LT1021DIN8-5#PBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0241 Epoxy Change from Henkel 8290 to 8290A for PDIP Package |
||
| LT1021BCN8-10#PBF | PRODUCTION | |
| LT1021BCN8-5#PBF | PRODUCTION | |
| LT1021BCN8-7#PBF | PRODUCTION | |
| LT1021CCN8-10#PBF | PRODUCTION | |
| LT1021CCN8-5#PBF | PRODUCTION | |
| LT1021CIN8-10#PBF | PRODUCTION | |
| LT1021CIN8-5#PBF | PRODUCTION | |
| LT1021DCN8-10#PBF | PRODUCTION | |
| LT1021DCN8-5#PBF | PRODUCTION | |
| LT1021DCN8-7#PBF | PRODUCTION | |
| LT1021DIN8-10#PBF | PRODUCTION | |
| LT1021DIN8-5#PBF | PRODUCTION | |
|
Aug 6, 2022 - 22_0172 Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG] |
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| LT1021BCN8-10#PBF | PRODUCTION | |
| LT1021BCN8-5#PBF | PRODUCTION | |
| LT1021BCN8-7#PBF | PRODUCTION | |
| LT1021CCN8-10#PBF | PRODUCTION | |
| LT1021CCN8-5#PBF | PRODUCTION | |
| LT1021CIN8-10#PBF | PRODUCTION | |
| LT1021CIN8-5#PBF | PRODUCTION | |
| LT1021DCN8-10#PBF | PRODUCTION | |
| LT1021DCN8-5#PBF | PRODUCTION | |
| LT1021DCN8-7#PBF | PRODUCTION | |
| LT1021DIN8-10#PBF | PRODUCTION | |
| LT1021DIN8-5#PBF | PRODUCTION | |
|
Oct 12, 2022 - 22_0254 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2) |
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| LT1021DCS8-10#PBF | PRODUCTION | |
| LT1021DCS8-10#TRPBF | PRODUCTION | |
| LT1021DCS8-5#PBF | PRODUCTION | |
| LT1021DCS8-5#TRPBF | PRODUCTION | |
| LT1021DCS8-7#PBF | PRODUCTION | |
| LT1021DCS8-7#TRPBF | PRODUCTION | |
|
Jun 11, 2021 - 21_0060 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LT1021DCS8-10#PBF | PRODUCTION | |
| LT1021DCS8-10#TRPBF | PRODUCTION | |
| LT1021DCS8-5#PBF | PRODUCTION | |
| LT1021DCS8-5#TRPBF | PRODUCTION | |
| LT1021DCS8-7#PBF | PRODUCTION | |
| LT1021DCS8-7#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Precision Resistor Network 1 | ||
| LT5400 | RECOMMENDED FOR NEW DESIGNS | Quad Matched Resistor Network |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LT1021-10
- LT1021-5
- LT1021-7
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.